I just went to hpi's website and it says that the rtr version of the MT2 has 2.2 horsepower compared to the super sport version's engine that has only 1.5 horsepower. It also says that the g3.0 version has a redesigned suspension. I'm really surprised that hpi hasn't came out with a kit version of the new and improved MT2 G3.0. Is HPI forgetting the guys that still like to build kits?!?!